147   PinnableSlice() { buf_ = &self_space_; }  in PinnableSlice()
148   explicit PinnableSlice(std::string* buf) { buf_ = buf; }  in PinnableSlice()
178     buf_->assign(slice.data(), slice.size());  in PinSelf()
179     data_ = buf_->data();  in PinSelf()
180     size_ = buf_->size();  in PinSelf()
186     data_ = buf_->data();  in PinSelf()
187     size_ = buf_->size();  in PinSelf()
196       buf_->erase(size() - n, n);  in remove_suffix()
207       buf_->erase(0, n);  in remove_prefix()
218   inline std::string* GetSelf() { return buf_; }  in GetSelf()
225   std::string* buf_;  variable